Theosophy Wiki - User contributions [en]

Radiant Matter

2013-08-23T21:19:22Z

Nicholas Weeks:

'''Radiant Matter''' is the term used to describe what British physicist [[William Crookes]] stated was a fourth state of matter, in a time when the atom was thought to be a small solid ball, indivisible and without motion. His theories were confirmed by the end of the 19th century and beginning of the 20th when it was discovered that what Crookes observed was a flow of electrons in a medium containing ''plasma'', the fourth state of matter. It is now known that 99.9% of the matter in the universe is plasma.

Crookes's experimental work in this field was the foundation of discoveries which eventually changed the whole of chemistry and physics.

== Crookes' experiment ==

By the 1870s the nature of electricity was unknown, and many experiments were done to determine its nature. Tubes with a low vacuum, possessing two metal electrodes (one at either end) were commonly employed for this purpose. When a high voltage was applied between the electrodes, a glow filling the tubes was observed. This glow was said to be the effect of "cathode rays."
[[File:Crookes tube.jpg|right|250px|thumb|Two views of the Crookes tubes]]
William Crookes was able to generate a higher vacuum in tubes (known as "Crookes Tubes") and found out that as he pumped more air out of the tubes, they became totally dark, except for the anode end, where the glass of the tube itself began to glow. This showed that the cathode rays traveled in straight lines from the cathode (negative) end to the anode (positive), causing fluorescence in objects upon which they impacted, and producing great heat.

At the time there were two theories to explain the nature of the cathodic rays. Heinrich Hertz and others believed they were "aether waves," while Crookes insisted they were formed by particles. He maintained they were a fourth state of matter where atoms were electrically charged. The debate was resolved in 1897 when Sir J. J. Thomson established the particle-nature of the rays. However, he discovered they were not atoms, but a new particle (the first subatomic particle to be discovered) which was named "electron". Thus, Thomson proved that the cathode rays are streams of electrons.

The full description of what happens in a Crookes tube is complicated because it contains a non-equilibrium plasma where electrons are moving an interacting with positive ions and neutral atoms. The details were not fully understood until the development of ''plasma physics'' in the early 20th century.

The Crookes tubes were used in many historic experiments. For example, in 1895, Wilhelm Röntgen discovered the X-rays emanating from Crookes tubes. Eventually, these tubes were superseded by the electronic vacuum tubes, in whose development [[Thomas Edison]] played an important role.

== Blavatsky on radiant matter ==

[[Helena Petrovna Blavatsky|H. P. Blavatsky]] maintained that Crookes' discovery of "radiant matter" proved that there exist more refined states of matter (or particles) than the "solid atoms" of her time. She argued that electricity was not an immaterial force, but a form of matter (later known as the electron) which does not have the properties assigned to "dense matter":

<blockquote>But what is in reality Matter? We have seen that it is hardly possible to call electricity a force, and yet we are forbidden to call it matter under the penalty of being called unscientific! . . . And, as Professor Crookes has now succeeded in refining gases to a condition so ethereal as to reach a state of matter “fairly describable as ultra-gaseous, and exhibiting an entirely novel set of properties,” why should the Occultists be taken to task for affirming that there are beyond that “ultra gaseous” state still other states of matter; states, so ultra refined, even in their grosser manifestations—such as electricity under all its known forms—as to have fairly deluded the scientific senses, and let the happy possessors thereof call electricity—a Force!<ref>Helena Petrovna Blavatsky, ''Collected Writings'' vol. IV (Wheaton, IL: Theosophical Publishing House, 1991), 221-222.</ref></blockquote>

== The Mahatmas and Radiant Matter ==

Crookes was a member of the [[Theosophical Society]] and for a time was one of the five counselors of the T.S. [[Morya|Mahatma M.]] says that it was his occult research which led to his discovery of radiant matter:

<blockquote>And Crookes — has he not brought science within our hail in his “radiant matter” discovery? What but occult research was it that ''led'' him first to that.<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 48 (Quezon City: Theosophical Publishing House, 1993), ???.</ref></blockquote>

[[Koot Hoomi|Master K. H.]] maintained that the "fourth state of matter" was not the ultimate one, but that there were higher states to be discovered:

<blockquote>Western Science has still three additional states of matter to discover. . . . If Mr. Crookes would penetrate Arcana beyond the corridors the tools of modern science have already excavated, let him — Try. He tried and found the Radiometer; tried again, and found Radiant matter; may try again and find the “Kama-rupa” of matter — its fifth state. But to find its Manas he would have to pledge himself stronger to secrecy than he seems inclined to.<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 48 (Quezon City: Theosophical Publishing House, 1993), 111.</ref></blockquote>

==Online resources==
===Articles===
* [http://en.wikisource.org/wiki/Popular_Science_Monthly/Volume_16/November_1879/On_Radiant_Matter_I# On Radiant Matter by W. Crookes] at Wikisource

== Notes ==
<references/>

[[Category:Scientific concepts]]
[[Category:Concepts in The Secret Doctrine]]

Phlogiston

2013-08-23T17:03:40Z

Nicholas Weeks:

'''Phlogiston''' (from the Ancient [[Greek]] φλογιστόν phlogistón "burning up") was a fire-like element said to be contained within combustible bodies and released during combustion. The air was thought to have a limited capacity to absorb the phlogiston released, this being the reason why combustion did not take place for long in an enclosed container.

The theory was first postulated in 1667 by Johann Joachim Becher (reformed in 1703 by Georg Ernst Stahl) as an attempt to explain processes such as combustion, metabolism, and the rusting of metals, which are now collectively known as oxidation.

During the eighteenth century it became clear that metals gained weight when they burned or were oxidized, even though they were supposed to have lost phlogiston. The threory remained dominant until Antoine-Laurent Lavoisier (1743 – 1794) showed that combustion requires a gas that has weight (oxygen) and could be measured by means of weighing closed vessels.

== Theosophical use ==

In [[Mahatma Letter No. 88#Page 22|one of his letters]], [[Koot Hoomi|Mahatma K.H.]] says:

<blockquote>Well, we believe in the much laughed at phlogiston (see article “What is force and what is matter?” Theosophist, September), and in what some natural philosophers would call nisus, the incessant though perfectly imperceptible (to the ordinary senses) motion or efforts one body is making on another — the pulsations of inert matter — its life. The bodies of the Planetary spirits are formed of that which Priestley and others called Phlogiston and for which we have another name — this essence in its highest seventh state forming that matter of which the organisms of the highest and purest Dhyans are composed, and in its lowest or densest form (so impalpable yet that science calls it energy and force) serving as a cover to the Planetaries of the 1st or lowest degree.<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 88 (Quezon City: Theosophical Publishing House, 1993), 273.</ref></blockquote>

In the article referred to above the author (who [[Helena Petrovna Blavatsky|Mme. Blavatsky]] stated was Master K.H. himself<ref>A. Trevor Barker, ''The Letters of H. P. Blavatsky to A. P. Sinnett'' Letter No. VI, (Pasadena, CA: Theosophical University Press, 1973), 8.</ref>) discussed the nature of force and [[matter]]. In it, he argued that forces such as electricity were a form of matter (this, before the electron was discovered), and related them to the idea of phlogiston, although not in the sense of an "element" with weight:

<blockquote>. . . it is not in the least unscientific to speak of the substantiality of the so-called Forces. Subject to some future specific name, this force is substance of some kind, and can be nothing else; and perhaps one day Science will be the first to re-adopt the derided name of phlogiston.<ref>Helena Petrovna Blavatsky, ''The Secret Doctrine'' vol. I, (Wheaton, IL: Theosophical Publishing House, 1993), 511.</ref></blockquote>

<blockquote>The Phlogiston of Stahl [was] a theory of combustion taught by [[Aristotle]] and the Greek philosophers. . . . Lavoisier, as it is well known, did not add any new fact of prime importance by upsetting the phlogiston theory, but only added “a grand generalization.” But the [[Occultism|Occultists]] prefer to hold to the fundamental theories of ancient sciences. No more than the authors of the old theory, do they attach to phlogiston—which has its specific name as one of the attributes of [[Ākāśa|Akasha]]—the idea of weight which the [[Initiation|uninitiated]] generally associate with all [[matter]]. And though to us it is a principle, a well-defined essence, whereas to Stahl and others it was an undefined essence—yet, no more than we, did they view it as matter in the sense it has for the present men of science. As one of their modern professors puts it: “Translate the phlogiston by energy, and in Stahl’s work on Chemistry and Physics, of 1731, put energy where he wrote phlogiston, and you have . . . our great modern doctrine of conservation of energy.” Verily so; it is the “great modern doctrine,” only—plus something else, let me add. Hardly a year after these words had been pronounced, the discovery by [[William Crookes|Professor Crookes]] of [[Radiant Matter|radiant matter]]—of which, further on—has nigh upset again all their previous theories.<ref>Helena Petrovna Blavatsky, ''Collected Writings'' vol. IV (Wheaton, IL: Theosophical Publishing House, 1991), 217-218.</ref></blockquote>

The "radiant matter" was what today is known as "plasma", the fourth state of matter. By heating a gas its molecules or atoms are ionized (reducing or increasing the number of electrons in them), thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions.

The connection between phlogiston and plasma can also be seen in [[Mahatma Letter No. 93b#Page 44|another letter]] from Master K.H.:

<blockquote>What are those long white filaments twisted like so many ropes, of which the penumbra of the Sun is made up? What the central part that is seen like a huge flame ending in fiery spires, and the transparent clouds, or rather vapours formed of delicate threads of silvery light, that hangs over those flames — what — but magneto-electric aura — the phlogiston of the Sun?<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 93B (Quezon City: Theosophical Publishing House, 1993), 320-321.</ref></blockquote>

Today it is known that the corona of the sun consists of extremely hot ionized gases, or plasma. The "prominences" (large, bright, gaseous features extending outward from the Sun's surface) contain much cooler plasma, typically a hundred times cooler and denser than the coronal plasma.

The identical phenomena of twisted plasma filaments, as described by the Master, can be observed throughout the stars of the Galaxy and on Earth. They are known as "Birkeland currents". This current on Earth is the result of the motion of space plasma following the magnetic field of the planet, induced by the solar wind:

<blockquote>A Birkeland current usually refers to the electric currents in a planet's ionosphere that follows magnetic field lines (i.e., field-aligned currents), and sometimes used to describe any field-aligned electric current in a space plasma. They are caused by the movement of a plasma perpendicular to a magnetic field. Birkeland currents often show filamentary, or twisted "rope-like" magnetic structure.<ref>Birkeland current at http://www.plasma-universe.com/Birkeland_current</ref></blockquote>

The existence of these currents was also observed in the sun by the Ulysses spacecraft launched in 1990.

Thus, it is possible that by "phlogiston" Mme. Blavatsky and her teachers were referring to the fact that atoms have energy and are divisible (something denied by the science of the time), containing electrons that, when removed, form ions. This characteristc is the foundation for all chemical reactions.

== Notes ==
<references/>

[[Category:Greek terms]]
[[Category:Concepts in The Secret Doctrine]]
[[Category:Scientific concepts]]

Phlogiston

2013-08-23T14:50:49Z

Nicholas Weeks:

'''Phlogiston''' (from the Ancient [[Greek]] φλογιστόν phlogistón "burning up") was a fire-like element said to be contained within combustible bodies and released during combustion. The air was thought to have a limited capacity to absorb the phlogiston released, this being the reason why combustion did not take place for long in an enclosed container.

The theory was first postulated in 1667 by Johann Joachim Becher (reformed in 1703 by Georg Ernst Stahl) as an attempt to explain processes such as combustion, metabolism, and the rusting of metals, which are now collectively known as oxidation.

During the eighteenth century it became clear that metals gained weight when they burned or were oxidized, even though they were supposed to have lost phlogiston. The threory remained dominant until Antoine-Laurent Lavoisier (1743 – 1794) showed that combustion requires a gas that has weight (oxygen) and could be measured by means of weighing closed vessels.

== Theosophical use ==

In [[Mahatma Letter No. 88#Page 22|one of his letters]], [[Koot Hoomi|Mahatma K.H.]] says:

<blockquote>Well, we believe in the much laughed at phlogiston (see article “What is force and what is matter?” Theosophist, September), and in what some natural philosophers would call nisus, the incessant though perfectly imperceptible (to the ordinary senses) motion or efforts one body is making on another — the pulsations of inert matter — its life. The bodies of the Planetary spirits are formed of that which Priestley and others called Phlogiston and for which we have another name — this essence in its highest seventh state forming that matter of which the organisms of the highest and purest Dhyans are composed, and in its lowest or densest form (so impalpable yet that science calls it energy and force) serving as a cover to the Planetaries of the 1st or lowest degree.<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 88 (Quezon City: Theosophical Publishing House, 1993), 273.</ref></blockquote>

In the article referred to above the author (who [[Helena Petrovna Blavatsky|Mme. Blavatsky]] stated was Master K.H. himself<ref>A. Trevor Barker, ''The Letters of H. P. Blavatsky to A. P. Sinnett'' Letter No. VI, (Pasadena, CA: Theosophical University Press, 1973), 8.</ref>) discussed the nature of force and [[matter]]. In it, he argued that forces such as electricity were a form of matter (this, before the electron was discovered), and related them to the idea of phlogiston, although not in the sense of an "element" with weight:

<blockquote>. . . it is not in the least unscientific to speak of the substantiality of the so-called Forces. Subject to some future specific name, this force is substance of some kind, and can be nothing else; and perhaps one day Science will be the first to re-adopt the derided name of phlogiston.<ref>Helena Petrovna Blavatsky, ''The Secret Doctrine'' vol. I, (Wheaton, IL: Theosophical Publishing House, 1993), 511.</ref></blockquote>

<blockquote>The Phlogiston of Stahl [was] a theory of combustion taught by [[Aristotle]] and the Greek philosophers. . . . Lavoisier, as it is well known, did not add any new fact of prime importance by upsetting the phlogiston theory, but only added “a grand generalization.” But the [[Occultism|Occultists]] prefer to hold to the fundamental theories of ancient sciences. No more than the authors of the old theory, do they attach to phlogiston—which has its specific name as one of the attributes of [[Ākāśa|Akasha]]—the idea of weight which the [[Initiation|uninitiated]] generally associate with all [[matter]]. And though to us it is a principle, a well-defined essence, whereas to Stahl and others it was an undefined essence—yet, no more than we, did they view it as matter in the sense it has for the present men of science. As one of their modern professors puts it: “Translate the phlogiston by energy, and in Stahl’s work on Chemistry and Physics, of 1731, put energy where he wrote phlogiston, and you have . . . our great modern doctrine of conservation of energy.” Verily so; it is the “great modern doctrine,” only—plus something else, let me add. Hardly a year after these words had been pronounced, the discovery by [[William Crookes|Professor Crookes]] of [[Radiant Matter|radiant matter]]—of which, further on—has nigh upset again all their previous theories.<ref>Helena Petrovna Blavatsky, ''Collected Writings'' vol. IV (Wheaton, IL: Theosophical Publishing House, 1991), 217-218.</ref></blockquote>

The "radiant matter" was what today is known as "plasma", the fourth state of matter. By heating a gas its molecules or atoms are ionized (reducing or increasing the number of electrons in them), thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions.

The connection between phlogiston and plasma's Birkeland currents can also be seen in [[Mahatma Letter No. 93b#Page 44|another letter]] from Master K.H.:

<blockquote>What are those long white filaments twisted like so many ropes, of which the penumbra of the Sun is made up? What the central part that is seen like a huge flame ending in fiery spires, and the transparent clouds, or rather vapours formed of delicate threads of silvery light, that hangs over those flames — what — but magneto-electric aura — the phlogiston of the Sun?<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 93B (Quezon City: Theosophical Publishing House, 1993), 320-321.</ref></blockquote>

Thus, it is possible that by "phlogiston" Mme. Blavatsky and her teachers were referring to the fact that atoms have energy and are divisible (something denied by the science of the time), containing electrons that, when removed, form ions. This characteristc is the foundation for all chemical reactions.

== Notes ==
<references/>

[[Category:Greek terms]]
[[Category:Concepts in The Secret Doctrine]]
[[Category:Scientific concepts]]

Phlogiston

2013-08-23T14:49:42Z

Nicholas Weeks:

'''Phlogiston''' (from the Ancient [[Greek]] φλογιστόν phlogistón "burning up") was a fire-like element said to be contained within combustible bodies and released during combustion. The air was thought to have a limited capacity to absorb the phlogiston released, this being the reason why combustion did not take place for long in an enclosed container.

The theory was first postulated in 1667 by Johann Joachim Becher (reformed in 1703 by Georg Ernst Stahl) as an attempt to explain processes such as combustion, metabolism, and the rusting of metals, which are now collectively known as oxidation.

During the eighteenth century it became clear that metals gained weight when they burned or were oxidized, even though they were supposed to have lost phlogiston. The threory remained dominant until Antoine-Laurent Lavoisier (1743 – 1794) showed that combustion requires a gas that has weight (oxygen) and could be measured by means of weighing closed vessels.

== Theosophical use ==

In [[Mahatma Letter No. 88#Page 22|one of his letters]], [[Koot Hoomi|Mahatma K.H.]] says:

<blockquote>Well, we believe in the much laughed at phlogiston (see article “What is force and what is matter?” Theosophist, September), and in what some natural philosophers would call nisus, the incessant though perfectly imperceptible (to the ordinary senses) motion or efforts one body is making on another — the pulsations of inert matter — its life. The bodies of the Planetary spirits are formed of that which Priestley and others called Phlogiston and for which we have another name — this essence in its highest seventh state forming that matter of which the organisms of the highest and purest Dhyans are composed, and in its lowest or densest form (so impalpable yet that science calls it energy and force) serving as a cover to the Planetaries of the 1st or lowest degree.<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 88 (Quezon City: Theosophical Publishing House, 1993), 273.</ref></blockquote>

In the article referred to above the author (who [[Helena Petrovna Blavatsky|Mme. Blavatsky]] stated was Master K.H. himself<ref>A. Trevor Barker, ''The Letters of H. P. Blavatsky to A. P. Sinnett'' Letter No. VI, (Pasadena, CA: Theosophical University Press, 1973), 8.</ref>) discussed the nature of force and [[matter]]. In it, he argued that forces such as electricity were a form of matter (this, before the electron was discovered), and related them to the idea of phlogiston, although not in the sense of an "element" with weight:

<blockquote>. . . it is not in the least unscientific to speak of the substantiality of the so-called Forces. Subject to some future specific name, this force is substance of some kind, and can be nothing else; and perhaps one day Science will be the first to re-adopt the derided name of phlogiston.<ref>Helena Petrovna Blavatsky, ''The Secret Doctrine'' vol. I, (Wheaton, IL: Theosophical Publishing House, 1993), 511.</ref></blockquote>

<blockquote>The Phlogiston of Stahl [was] a theory of combustion taught by [[Aristotle]] and the Greek philosophers. . . . Lavoisier, as it is well known, did not add any new fact of prime importance by upsetting the phlogiston theory, but only added “a grand generalization.” But the [[Occultism|Occultists]] prefer to hold to the fundamental theories of ancient sciences. No more than the authors of the old theory, do they attach to phlogiston—which has its specific name as one of the attributes of [[Ākāśa|Akasha]]—the idea of weight which the [[Initiation|uninitiated]] generally associate with all [[matter]]. And though to us it is a principle, a well-defined essence, whereas to Stahl and others it was an undefined essence—yet, no more than we, did they view it as matter in the sense it has for the present men of science. As one of their modern professors puts it: “Translate the phlogiston by energy, and in Stahl’s work on Chemistry and Physics, of 1731, put energy where he wrote phlogiston, and you have . . . our great modern doctrine of conservation of energy.” Verily so; it is the “great modern doctrine,” only—plus something else, let me add. Hardly a year after these words had been pronounced, the discovery by [[William Crookes|Professor Crookes]] of [[Radiant Matter|radiant matter]]—of which, further on—has nigh upset again all their previous theories.<ref>Helena Petrovna Blavatsky, ''Collected Writings'' vol. IV (Wheaton, IL: Theosophical Publishing House, 1991), 217-218.</ref></blockquote>

The "radiant matter" was what today is known as "plasma", the fourth state of matter. By heating a gas its molecules or atoms are ionized (reducing or increasing the number of electrons in them), thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions.

The connection between phlogiston and plasma can also be seen in [[Mahatma Letter No. 93b#Page 44|another letter]] from Master K.H.:

<blockquote>What are those long white filaments twisted like so many ropes, of which the penumbra of the Sun is made up? What the central part that is seen like a huge flame ending in fiery spires, and the transparent clouds, or rather vapours formed of delicate threads of silvery light, that hangs over those flames — what — but magneto-electric aura — the phlogiston of the Sun?<ref>Vicente Hao Chin, Jr., ''The Mahatma Letters to A.P. Sinnett in chronological sequence'' No. 93B (Quezon City: Theosophical Publishing House, 1993), 320-321.</ref></blockquote>

Thus, it is possible that by "phlogiston" Mme. Blavatsky and her teachers were referring to the fact that atoms have energy and are divisible (something denied by the science of the time), containing electrons that, when removed, form ions. This characteristc is the foundation for all chemical reactions.

== Notes ==
<references/>

[[Category:Greek terms]]
[[Category:Concepts in The Secret Doctrine]]
[[Category:Scientific concepts]]

Blavatsky writings

2012-09-21T02:38:32Z

Nicholas Weeks: /* Travel accounts */

{{Template:Article needs expansion}}
[[Category:Research tools]]
[[Category:Reading lists]]
<br>
<br>
<br>
This is a source of links to Web-based resouces for the writings of [[Helena Petrovna Blavatsky]]. Sources for her letters are listed separately in [[Blavatsky correspondence]].

== Chronological listing of major writings ==

== Collected Writings ==

The fifteen volumes of [[H. P. Blavatsky Collected Writings (book)|''H. P. Blavatsky Collected Writings'']] include almost all of her known writings from 1874-1891, excluding letters. It is available online at [http://www.katinkahesselink.net/blavatsky/ Katinka Hesselink's website]

== ''The Secret Doctrine'' ==

HPB's masterwork was published in 1888 in two volumes.

* '''''The Secret Doctrine Volume I: Cosmogenesis'''''. 1888 edition. Full text online at [http://www.theosociety.org/pasadena/sd/sd-hp.htm# Theosophical University Press Online] or available in PDF format at [http://www.philaletheians.co.uk/Study%20notes/Blavatsky%20Speaks/The%20Secret%20Doctrine%20(1888)%20Vol.%201%20of%202,%20Cosmogenesis.pdf Philalethians web page.]
* '''''The Secret Doctrine Volume II: Anthropogenesis'''''. 1888 edition. Full text online at [http://www.theosociety.org/pasadena/sd/sd-hp.htm# Theosophical University Press Online] or available in PDF format at [http://www.philaletheians.co.uk/Study%20notes/Blavatsky%20Speaks/The%20Secret%20Doctrine%20(1888)%20Vol.%202%20of%202,%20Anthropogenesis.pdf Philalethians web page.]
* '''''Pages from The Secret Doctrine: Version 1 Abridged'''''. Selections commended by H. P. Blavatsky and B. P. Wadia. Available at [http://www.philaletheians.co.uk/Study%20notes/Blavatsky%20Speaks/Pages%20from%20the%20Secret%20Doctrine%201%20-%20Abridged.pdf Philalethians web page.]
* '''''Pages from The Secret Doctrine: Version 2 Full Text'''''. Selections commended by H. P. Blavatsky and B. P. Wadia. Available at [http://www.philaletheians.co.uk/Study%20notes/Blavatsky%20Speaks/Pages%20from%20the%20Secret%20Doctrine%202%20-%20Full%20text.pdf Philalethians web page.]

* '''''The Secret Doctrine Index'''''. Prepared by John P. Van Mater. Pasadena, CA: Theosophical University Press, 1997. Available at [http://www.theosociety.org/pasadena/sd-index/dx-00hp.htm Theosophical University Press Online]. This valuable study aid, 441 pages in length, indexes major subject terms; foreign-language terms with 1888 and modern spellings; and people and works mentioned in the SD.

== ''Isis Unveiled'' ==

[[Isis Unveiled (book)|''Isis Unveiled'']] was HPB's first major work, in which she discussed scientific theories and religious beliefs of the time. Some of the information presented is considered to be inaccurate compared to her masterwork [[The Secret Doctrine (book)|''The Secret Doctrine'']].

The centenary edition and additional resources have been made available online by [http://isisunveiled.net/ Isisunveiled.net].

== ''The Key to Theosophy'' ==

This is a basic work about the principles of Theosophy, in which HPB answers questions. It was written in 1889. Sources of audio and printed versions, both free and commercial offerings, are listed at [http://blavatskyarchives.com/hpbwritingskey.htm KeytoTheosophy.Net.]

== ''The Voice of the Silence'' ==

This small volume is a guide for those who wish to become disciples on the spiritual path.

* [[The Voice of the Silence (book)|''The Voice of the Silence'']]. 1889. Text available at [http://www.blavatsky.net/blavatsky/voice_of_the_silence/index.htm Theosophy Net. ]
* Sources of audio and printed versions, both free and commercial offerings, are listed at [http://voiceofthesilence.net./ voiceofthesilence.net.]

== Theosophical Glossary ==

HPB also wrote a glossary of Theosophical terminology. Boris de Zirkoff wrote an illuminating study of the glossary in "Who Played That Trick on H. P. B.?".<ref>Boris de Zirkoff, "Who Played That Trick on H. P. B.?", [[Theosophia (periodical)|''Theosophia'']] (Winter 1967-68). The article was posted on the [[Theos-Talk (Internet forum)|Theos-Talk]] discussion list on May 11, 2001, and is available at [http://theosophicalglossary.net/ Theos-Talk].</ref>

* '''''The Theosophical Glossary''''' by H. P. Blavatsky. Available from [http://theosophicalglossary.net/ the Blavatsky Study Center].

== ''Lucifer'' magazine ==

[[Lucifer (periodical)|''Lucifer'']] was a magazine founded by H. P. Blavatsky in 1887.

* Volumes 1-10 and index available at Blavatsky Study Center [http://blavatskyarchives.com/luciferreprints.htm Blavatsky Study Center]

== ''The Theosophist'' magazine ==

[[The Theosophist (periodical)|''The Theosophist'']] magazine was established by [[Helena Petrovna Blavatsky|H.P. Blavatsky]] in 1879, and has been published continuously ever since. It is the flagship periodical of the [[Theosophical Society (Adyar)]].

== Travel accounts ==

* '''''The Durbar in Lahore'''''. 1880.
* '''''From the Caves and Jungles of Hindostan'''''. 1883, 1892. Available from Quest Books [http://www.questbooks.net/title.cfm?bookid=40]

== Occult stories ==
* '''''Nightmare Tales'''''. 1892.

== Organizational lectures, instructions, and reports ==

* '''''The Original Programme of The Theosophical Society'''''. 1886. Available at [http://www.theosophy-nw.org/theosnw/theos/th-origp.htm Theosophy Northwest].
* '''''Madame Blavatsky's Esoteric Papers A Comprehensive Compilation of H. P. Blavatsky's Esoteric Papers'''''. 1888-1891. Compiled by Daniel Caldwell. Portions are available at the [http://esotericpapers.net/ Blavatsky Archives].

== Miscellaneous ==

* '''''Gems from the East: A Birthday Book of Precepts and Axioms'''''. Compiled by H.P.B. 1890. Available at [http://www.theosociety.org/pasadena/ts/hpb-gems.htm Theosophical University Press Online].
* '''''Studies in Occultism'''''. Available at [http://www.theosociety.org/pasadena/ts/hpbstdoc.htm University Press Online].
* '''''Other Writings from H.P. Blavatsky's Pen'''''. Letters, articles, and E. S. instructions available at [http://www.blavatskyarchives.com/compitems2.htm#Blavatsky Blavatsky Archives]. Some are not in the Collected writings.
* '''''A Modern Panarion: A Compilation of Forgotten Fragments 1874-1884'''''. Edited and abridged by G.R.S. Mead, published in 1895. It is available at [http://theosophy.org/Blavatsky/Modern%20Panarion/Panarion.htm The Theosophy Company website] and at the [http://blavatskyarchives.com/modernpanarion.htm Blavatsky Archives].

== Notes ==
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